Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Cupertino
A general contractor in Cupertino typically charges $14,000 – $45,000 for a kitchen remodel, $9,000 – $28,000 for a bathroom remodel, and $45,000 – $130,000 for a home addition. Most jobs start with a site visit and a written, line-item estimate. That’s how Millwright Builders works: we show up, walk the property, and give you a real number before you commit. Call (866) 925-0334 to schedule yours. We serve all of Cupertino, from Monta Vista to the Rancho San Antonio foothills, and we know what these houses hold behind their walls.
Why Millwright Builders Is Cupertino’s Preferred General Contractor Company
Cupertino homeowners don’t hire us because we’re convenient. They hire us because most of this city’s housing stock was framed between 1955 and 1975, and opening up those walls always means something. Knob-and-tube remnants, galvanized supply lines on their last winter, shallow footings that don’t meet current seismic code. Millwright Builders is led by Noel Castañeda, and our team treats every Cupertino job as a full-scope project, not a quick finish swap. We’re the General Contractor homeowners bring in when the scope is too large for a single-trade specialist.
Our Cupertino clients call us because we write allowances into the contract before the first hammer swings. A surprise behind the drywall should not become a financing emergency. We document, we price, and we get your written approval before anything changes. Response time to Cupertino is typically one to two business days for an estimate visit. For larger remodels, we schedule a pre-bid walkthrough that includes a foundation and plumbing inspection so the number we quote is the number you can plan around.
One contractor from roofline to back patio
Most Cupertino remodels stall because the homeowner is coordinating three different subs and none of them talk to each other. Millwright operates under one license and one contract across framing, roofing, windows, plumbing, cabinetry, countertops, and hardscape. GAF and Owens Corning on the roof. Grohe in the shower. Cambria on the island. From the roofline to the back patio, one contractor, one conversation.
Styles & brands we work with
Licensed General Contractor in Cupertino
A Licensed General Contractor in Cupertino manages every trade on a permitted remodel or rebuild, from demolition through final inspection. That’s the difference between hiring us and juggling five different subs yourself: we hold the license, we hold the liability, and we hold the schedule. In Cupertino, where a permit on a 1960s home can trigger seismic retrofits, energy code compliance, and plumbing upgrades all at once, that accountability matters more than in newer cities. Typical kitchen remodels here run $14,000 – $45,000. A whole-home remodel, depending on scope, can reach well beyond that.
Permit compliance on older stock
Most of Cupertino was built out from 1955 to 1975 as single-story, wood-frame ranch homes with shallow foundations and original galvanized plumbing. Once a permit is pulled and walls are opened, the city requires upgrades to current seismic and energy standards. We don’t fight that; we plan for it. Your estimate should include line items for what a permit will trigger, before demolition starts.
Inspection-passing work, the first time
A failed rough-in inspection costs you time and money. We’ve passed sign-off on Cupertino remodels the first time, in part because our field team documents every opened wall, every upgraded strap, and every replaced run before asking for the inspection. That’s not luck. It’s process.
Residential General Contractor in Cupertino
A Residential General Contractor in Cupertino handles whole-home renovations, kitchen and bath overhauls, additions, and ADUs on single-family properties. If your project touches more than two trades, you need a general contractor, not a specialist. In Cupertino’s market, where the same square footage can carry radically different structural scope between a flatland tract off Stevens Creek Boulevard and a hillside lot near Rancho San Antonio, a residential GC who knows both is worth the call before you buy your materials.
Whole-home remodels and additions
Home additions in Cupertino start around $45,000 and can exceed $130,000 depending on foundation conditions, zoning, and lot slope. We handle the permitting, the engineering coordination, and the build. Whole-home remodels that include a new kitchen, two baths, windows, and a roof generally fall between $100,000 and $250,000 in this city.
ADU construction and garage conversions
Cupertino homeowners are increasingly adding ADUs. We build them. Garage conversions run $30,000 – $80,000. Standalone ADUs run $90,000 – $220,000. We work with Abodu, Dvele, and Mighty Buildings when a prefab approach fits the lot, and we do stick-built when it doesn’t. Either way, one contract, one team.
Trusted Brands We Service in Cupertino
You won’t get a thin catalog from us. Millwright sources and installs from over 50 name-brand manufacturers, and for Cupertino clients we keep the selection tight and relevant: GAF and Owens Corning for roofing, Grohe for kitchen and bath fixtures, KraftMaid and Wellborn for cabinetry, Cambria and Caesarstone for countertops. Noel Castañeda’s team specifies the brand, explains the trade-off, and stands behind the install. We stock and work with these product lines regularly, which means faster material lead times for Cupertino customers than a contractor ordering one-off from a wholesale desk. Every product we install, we’ve vetted, not just stocked.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Cupertino Homes
- Hidden galvanized pipe failures. In homes built from 1955 to 1975, original galvanized supply lines are at end of life. We’ve seen them fail pressure tests mid-remodel, which stops the job until a written change order covers the re-pipe.
- Shallow foundations and seismic triggers. Original ranch homes rarely meet current shear and tie-down requirements. Once a permit is pulled, the retrofit is required. Contractors who don’t plan for it hand their clients a surprise invoice.
- Hillside foundation scope on western lots. Steep lots near Rancho San Antonio often require caisson foundations and retaining walls for additions or rebuilds. Skipping a pre-bid geotechnical review means the foundation is poured before the real cost shows up.
- Soft subfloors and failed waterproofing. Decades of slow plumbing leaks under kitchen and bath floors have left many Cupertino homes with rotted plywood. Opening the floor always tells the truth. The estimate should account for it.
Pricing for General Contractor in Cupertino, CA
Here are honest, market-calibrated numbers for Cupertino work:
| Project | Typical Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
What moves the number in Cupertino more than anywhere else? What’s behind the walls and under the slab. A hillside lot near the foothills with expansive clay soils can require caissons and retaining walls before framing starts. A 1962 flatland ranch may need a full re-pipe, re-wire, and seismic retrofit triggered by the permit itself. We write allowances into our contracts for exactly these conditions, and any change is priced and approved in writing before work proceeds. Call (866) 925-0334 for a free estimate on your project.
We Also Serve Cities Near Cupertino
Millwright Builders serves General Contractor in Cupertino and the surrounding communities, including Loyola, Saratoga, Sunnyvale, and Los Altos. If you’re in one of those cities and planning a major remodel or addition, the same team, the same process, and the same material standards apply.
Serving Cupertino, CA — Our Local Coverage Area
We’re based in the Cupertino area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About General Contractor in Cupertino
Galvanized supply lines at or past end of life, wiring that doesn’t meet current code, and framing that typically requires seismic strapping once a permit is pulled. We’ve opened up 1962 ranches in the Rancho San Antonio foothills and found failing supply lines and soft subfloors from slow leaks, which we documented and priced before continuing. Call (866) 925-0334 to discuss what your home might turn up.
We stop work, document the condition with photos, issue a written change order with a fixed price, and resume only after you sign. No surprise draws, no verbal handshakes. That’s the standard Noel Castañeda set for every Cupertino job.
Often, yes. Western hillside lots sit on expansive clay soils with steep grades, so permitted rebuilds and additions frequently require caisson foundations and retaining walls. A flatland tract a mile east may need nothing more than standard footings. We inspect before we quote so the structural scope is priced on day one, not after the foundation is poured.
A permit triggers the legal requirement to bring the opened portion of your home to current seismic and energy standards. That’s not a tax; it’s the difference between a home that meets code and one that doesn’t. We pull permits, coordinate inspections, and build to pass the first time.
Plan on 6 to 10 weeks for a kitchen and 4 to 6 weeks for a bathroom, assuming no major structural surprises. Add time if your hillside lot requires foundation work or retaining walls. We’ll give you a written schedule at contract signing, and we’ll hold to it or tell you why we can’t.
Written by Noel Castañeda, Owner at Millwright Builders, serving Cupertino and the surrounding Bay Area.